<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>登录</title>
</head>
<body>
<form action="/login">
  <input type="text" name="username" placeholder="请输入用户名:">
  <input type="password" name="password" placeholder="请输入密码:">
  <input type="submit" value="登录">
</form>
</body>
</html>